SIMPLE godoc Hello world - go

Question

Trying to serve a godoc on a simple, flat code folder. The online docs do not explain how to achieve this SIMPLE task.
So, creating this simple structure,
/tmp/testgodoc$ tree
.
└── src
├── main (just the binary)
└── main.go
1 directory, 2 files
where main.go is simply
/tmp/testgodoc$ cat src/main.go
// Hello godoc
package main
import "fmt"
// Say Hello
func main() {
fmt.Println("Hello")
}
When running either in GOPATH or module modes, opening localhost:6060 in a browser does not give the expected result of documenting current folder.
Running in module mode give this output and result:
/tmp/testgodoc$ ~/go/bin/godoc -goroot=. -http=:6060
using module mode; GOMOD=/dev/null
(when Ctrl-C:) cannot find package "." in:
/src/main
^C
And running in GOPATH mode seems to point to the local standard library:
/tmp/testgodoc$ GO111MODULE=off ~/go/bin/godoc -goroot=. -http=:6060
using GOPATH mode
^C

Answer 1

You should put your main package into a subdirectory, maybe like this:
~/go/src/testGoDoc$ tree
├── cmd
│ └── main.go
├── go.mod
└── pkg
└── test1
└── test_package.go
and by this you can run both commands:
godoc -http=:6060 #http://localhost:6060/pkg/<module name inside go.mod>/
and
GO111MODULE=off godoc -http=:6060 #http://localhost:6060/pkg/testGoDoc/